2W4H

Isometrically contracting insect asynchronous flight muscle quick frozen after a quick release step

ELECTRON MICROSCOPY

Sample
ISOMETRICALLY CONTRACTING ASYNCHRONOUS INSECT FLIGHT MUSCLE FROM THE LARGE WATERBUG LETHOCERUS INDICUS

Specimen Preparation
Sample Aggregation State	FILAMENT

3D Reconstruction
Reconstruction Method	HELICAL
Number of Particles
Reported Resolution (Å)
Resolution Method
Other Details	NOTE THAT OUR LOWEST RESOLUTION DATA IS AT INVERSE 1 MICRON. NUMBER OF FOURIER COEFFICIENTS IS ALMOST A HALF MILLION. THESE COORDINATES WERE FITTED TO ...	NOTE THAT OUR LOWEST RESOLUTION DATA IS AT INVERSE 1 MICRON. NUMBER OF FOURIER COEFFICIENTS IS ALMOST A HALF MILLION. THESE COORDINATES WERE FITTED TO AVERAGED SUBVOLUMES OBTAINED FROM A DUAL AXIS TOMOGRAM. THE FITTING WAS DONE MANUALLY USING THE CRYSTALLOGRAPHIC MODEL FITTING PROGRAM O. THERE ARE 14 MODELS.
Refinement Type
Symmetry Type	HELICAL

Data Acquisition
Detector Type	TVIPS TEMCAM-F224 (2k x 2k)
Electron Dose (electrons/Å**2)

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI/PHILIPS CM300FEG/T
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)	-72
Maximum Tilt Angle (degrees)	72
Nominal CS	2
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details	NONE

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.